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  • 1
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    A Multidisciplinary Approach to Earthquake Research: Implementation of a Geochemical Geographic Information System for the Gargano Site, Southern Italy (2007)
    Kluver
    Details
    Publication Date: 2020-11-26
    Description: A priority task for correct environmental planning is to evaluate Natural Hazards, especially in highly populated areas. In particular, thorough investigations based on different Earth Science techniques must be addressed for the Seismic Hazard Assessment (SHA) in tectonically active areas. Not only the management but also the multidisciplinary analysis of all the SHA-related data sets is best performed using a Geographic Information System. In this paper we show how a researchoriented GIS is built and used in a practical case. The Geochemical Geographic Information System (G2IS) was developed and applied to the Gargano promontory (southern Italy) in the framework of an EC research project, the Geochemical Seismic Zonation (GSZ) Project. This multidisciplinary – multiscaling powerful tool is described in its structure, updating procedures and manipulation techniques. Preliminary results are presented on the detection of geochemically active fault zones and their correlation with remote sensing data and other evidences of seismogenic structures.
    Description: Published
    Description: 255-278
    Description: JCR Journal
    Description: reserved
    Keywords: Geochemistry ; Gargano ; 05. General::05.02. Data dissemination::05.02.01. Geochemical data
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
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  • 2
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    Interseismic Strain Accumulation in the Gargano Promontory (Central Italy) (2007)
    Details
    Publication Date: 2017-04-04
    Description: The Gargano promontory is a ENE-WSW topographical and structural high located at the inner border of the Apulia foreland. The post-Miocene tectonics of the Gargano area is characterized mainly by E-W strike-slip and NW-SE normal faults, whose present state of activity is debated, since there have been no large earthquakes in the instrumental era. Still, the Gargano is well known as a seismically active zone: destructive earthquakes (and even a tsunami) have occurred in historical times, with felt effects up to XI MCS, although the exact location of the seismogenic sources is uncertain. The level of background seismicity is low, with a maximum magnitude Mw=5.4 occurring in the central part of the promontory. We have investigated the surface deformation in the area using the PS-InSAR processing technique. We have analysed 83 descending, and 31 ascending images, obtaining good coherence over about 200.000 Permanent Scatterers. We have modeled the ground velocity field using elastic dislocation models and a non-linear inversion scheme. The modeling preliminary results suggest that the area is presently accumulating strain along the E-W Mattinata fault, with locking depths in the range 10 to 15 km
    Description: Published
    Description: Vienna, Austria
    Description: open
    Keywords: SAR ; Inteferometry ; Permanent Scatterers ; Gargano ; 04. Solid Earth::04.03. Geodesy::04.03.01. Crustal deformations ; 04. Solid Earth::04.03. Geodesy::04.03.06. Measurements and monitoring ; 04. Solid Earth::04.03. Geodesy::04.03.07. Satellite geodesy ; 04. Solid Earth::04.03. Geodesy::04.03.08. Theory and Models ; 04. Solid Earth::04.03. Geodesy::04.03.09. Instruments and techniques
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: Poster session
    Format: 3064034 bytes
    Format: image/png
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  • 3
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    Preliminary study of the surface ground displacements in the Crati Valley (Calabria) by means of InSAR data (2015)
    Details
    Publication Date: 2017-04-04
    Description: We applied the multi-temporal Small Baseline Subset (SBAS) InSAR technique to investigate the ground displacements in the Crati Valley (Calabria, Southern Italy). The SBAS technique application to image data sets of the European Space Agency (ESA) Envisat satellite from 2003 to 2010, allowed us to obtain the displacement time series and the mean ground velocity map of the Crati Valley. We observed the existence of vertical displacements with velocity up to ~ -7 mm/yr in the central sector of the valley and the prevalence of horizontal deformation ranging from ~ -10 (eastward displacement) to ~10 mm/yr (westward displacement) along its sides. The subsidence processes have been correlated to tectonics and to the compaction of the recent sedimentary infilling of the valley with locally contribution due to the diffuse and fast urbanization. Along East and West sides the widespread landslides are considered the main responsible of the horizontal displacements.
    Description: Published
    Description: 20-23
    Description: 6A. Monitoraggio ambientale, sicurezza e territorio
    Description: N/A or not JCR
    Description: restricted
    Keywords: SBAS-InSAR, Crati Valley, Subsidence, Landslides, Human activities ; 04. Solid Earth::04.03. Geodesy::04.03.01. Crustal deformations ; 04. Solid Earth::04.04. Geology::04.04.99. General or miscellaneous
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
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  • 4
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    Study of the ground subsidences in the Sibari Plain (Southern Italy) detected by InSAR data analysis (2015)
    Details
    Publication Date: 2017-04-04
    Description: We investigated surface ground deformations in the Sibari Plain (SP - Calabria, Southern Italy) by means of Small Baseline Subset multi-temporal InSAR technique (SBAS), applied to two SAR datasets acquired from 2003 up to 2013 by Envisat (ESA, European Space Agency) and COSMO-SkyMed (ASI, Italian Space Agency) satellites. The retrieved InSAR data show the existence of ground subsidence phenomena up to ~ -20 mm/yr. Our investigation is based on integration between InSAR data and geological, well-logs, land use and hydrogeological information. The results show a direct correlation among subsidence, the thickness of Plio-Pleistocene succession and thickness and lithology of the late Holocene deposits. We identified the fast urbanization of the coastal area during the last ~50 yr and the water table drop as incremental factors of subsidence phenomena. The second factor, due to intensive use of ground water for agriculture, is not the triggering cause of subsidence processes on contrary to the assumption of some previous publications. No evidence of tectonic contribution in the ground deformation pattern is observed.
    Description: Published
    Description: 24-27
    Description: 6A. Monitoraggio ambientale, sicurezza e territorio
    Description: N/A or not JCR
    Description: restricted
    Keywords: SBAS, InSAR data, Sibari Plain, Subsidence ; 04. Solid Earth::04.04. Geology::04.04.99. General or miscellaneous ; 05. General::05.08. Risk::05.08.01. Environmental risk
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
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